Pour over coffee extraction device

Abstract

The present invention relates to a device configured to allow a hot water nozzle and a dripper to move relatively in three axial directions in a space in order to replicate the movement of a barista extracting a pour over coffee, the device comprising: a horizontal transport part for operating a head case so that the nozzle is transported along the radial direction of the dripper; a rotational operation part for operating so as to support the bottom surface of the dripper and to rotate same; and an elevation operation part for operating so as to vertically transport the rotational operation part.

The invention claimed is: 
     
       1. A pour over coffee extraction device comprising:
 a nozzle for supplying hot water from an upper portion of a dripper; 
 a head case in which the nozzle is mounted; 
 a horizontal transport part for operating the head case such that the nozzle is transported along a radial direction of the dripper; 
 a rotational operation part for supporting a bottom surface of the dripper to rotate the dripper; 
 an elevation operation part for vertically transporting the rotational operation part; 
 a lateral support for supporting the head case in a horizontal direction such that the head case moves forward and rearward in the horizontal direction; and 
 a pillar part for supporting the lateral support at a predetermined height above a counter in which the pour over coffee extraction device is installed, 
 wherein a relative movement between the nozzle and the dripper in a space is caused by operations of the horizontal transport part, the rotational operation part, and the elevation operation part. 
 
     
     
       2. The pour over coffee extraction device of  claim 1 , wherein the horizontal transport part includes:
 a first fixed frame supported to have a fixed position; 
 a first sliding frame installed to move relative to the first fixed frame; 
 a first actuator for generating a driving force for operating the first sliding frame; 
 a movable shaft coupled to the first sliding frame to move forward and rearward by the first actuator; 
 a first position detection sensor installed on the first fixed frame to detect a reference position of the first sliding frame; and 
 a first sensor bracket installed on the first sliding frame, and the head case is coupled to the first sliding frame to operate integrally with the first sliding frame. 
 
     
     
       3. The pour over coffee extraction device of  claim 2 , wherein the rotational operation part includes:
 a rotation support for supporting the bottom surface of the dripper; 
 a second actuator for rotating the rotation support; 
 a first rotation shaft rotated by the second actuator; and 
 a connection block for connecting the first rotation shaft to the rotation support, and the connection block is shaped such that an upper end of the connection block, which supports the rotation support, is expanded. 
 
     
     
       4. The pour over coffee extraction device of  claim 3 , wherein the elevation operation part includes:
 a second fixed frame supported to have a fixed position; 
 a second sliding frame installed to move relative to the second fixed frame in a vertical direction; 
 a third actuator for generating a driving force for operating the second sliding frame; 
 a second rotation shaft rotated by the third actuator, and screw-coupled to the second fixed frame to elevate the second sliding frame in a rotation direction; 
 a second position detection sensor installed on the second fixed frame to detect a reference position of the second sliding frame; and 
 a second sensor bracket installed on the second sliding frame, and the second sliding frame includes a horizontal extension portion for supporting the rotational operation part so that the second sliding frame and the rotational operation part are elevated integrally with each other by an operation of the third actuator.